Ahead of the FDA’s decision on Eli Lilly’s Alzheimer’s drug donanemab in February, the Big Pharma is dropping a first cut of data from one of the more interesting trials — but less important in a regulatory sense — at an Alzheimer’s conference in San Francisco.

In the unblinded 148-person study, Eli Lilly pitted its drug against Aduhelm, Biogen’s drug that won FDA approval but lost Medicare coverage outside of clinical trials. Notably, the study didn’t look at clinical outcomes, but rather the clearance of amyloid, a protein whose buildup is associated with Alzheimer’s disease, in the brain.

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Senate Finance Chair Ron Wyden (D-OR) this week sent a letter to the head of the Centers for Medicare & Medicaid Services seeking an update on how and when new inflation-linked rebates will take effect for drugs that see major price spikes.

The newly signed Inflation Reduction Act requires manufacturers to pay a rebate to Medicare when they increase drug prices faster than the rate of inflation.

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Magenta Therapeutics said it is halting work on its stem cell transplant drug pipeline and may sell itself, a week after the company reported the death of a patient in an early stage trial of its antibody-drug conjugate.

The Cambridge, MA-based company said it will conduct a “review of strategic alternatives,” and that could include an “acquisition, merger, business combination, or other transaction.”

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The use of real-world evidence to inform the FDA’s decision-making continues apace, with the agency releasing new draft guidance yesterday on how sponsors can compare outcomes of trial participants receiving a test treatment with outcomes in a group of people external to the trial.

The practice of externally controlled trials is common, particularly in oncology or other difficult areas where it’s not ethical or feasible to use internal controls.

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As fourth quarter earnings come in, Big Pharmas are disclosing changes to their pipelines during their investor calls, and sometimes more quietly in presentation appendices.

Merck dropped its chikungunya vaccine candidate, which completed a Phase II study. Merck acquired the vaccine through its purchase of Themis Bioscience in 2020. In developing a vaccine for chikungunya, a mosquito-borne virus, Valneva is the frontrunner, as it submitted its vaccine to the FDA at the end of December.

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Karuna Therapeutics is looking to compete with Boehringer Ingelheim on depression and anxiety with a new license to Goldfinch Bio’s assets, starting with $15 million to the shuttered biotech.

Karuna steps into an arena already being tested by Boehringer in multiple Phase II studies — the two are targeting transient receptor potential canonical 4 and 5, or TRPC4/5, which is thought to have a role in neuroscience indications. Goldfinch’s asset went through a Phase II in kidney diseases, but Karuna’s sights are set on mood and anxiety disorders for now.

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Over the past few years, Roche has released news about its AKT inhibitor ipatasertib in drips — most of them negative. The drug yielded mixed data in a key prostate cancer trial, Phase III flops in triple-negative breast cancer forced the pharma giant to pull the plug there, and in mid-2022 Roche trimmed two more early-stage indications in prostate cancer after completing the trials.

Now, the last piece of the program is gone.

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Months after the FDA placed Phase III trials of Sanofi’s BTK inhibitor on hold, the company is winding down one of the studies.

Sanofi reported in its Q4 earnings that the URSA study “was discontinued after careful evaluation of the emerging competitive treatment landscape in” myasthenia gravis, a rare disease that causes muscle weakness.

The Phase III, placebo-controlled trial was testing tolebrutinib in patients with the moderate-to-severe form of the disease. It started in late 2021, according to records on clinicaltrials.gov, and was originally designed to recruit 154 participants who were receiving the standard of care.

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